Elevator attachment.



No. 680,895. Patented Aug. 20, IQUII. E. R. STUDDARU.

ELEVATOR ATTACHMENT. (Application Bled Nov. 9, 1900.) (No Model.) i 3Sheeta-$heeft I.

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Patented Aug. 20, |90I.

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E. R. ST'DDAB. ELEVATOR ATTACHMENT.

(Application led Nov. 9, 1900.)

(No Model.)

Patented Aug. 20, |90L E. R. STODDARD.

ELEVATDR ATTACHMENT.

(Application led Nov. 9, 1900.)

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(No Model.)

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SPECIFICATION forming part of Letters Patent No. 680,895, dated August20, 1901. Application iiled November 9, 1900. Serial No. 35,973. (Nomodel.)

.To all whom, t may concern,.-

Be it knownthat I, EDGAR R. STODDARD, a citizen of the United States,residing at Detroit, in the county of Wayne and State of Michigan, haveinvented certain new and useful Improvements in Elevator Attachments, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

The invention relates to safety appliances for elevators of that classin which the hatchopenings of the various floors are normally closed byhatch-covers, said covers being automatically disengaged and taken up bythe car in its movement in one direction and again deposited in theirrespective positions by the opposite movement of the car.

The invention consists in the improved means hereinafter described andclaimed employed for changing the engagement of said covers from thelandings to the supports on the car, or vice versa.

The invention further consists in the peculiar construction,arrangement, and combination of paris, as hereinafter described andclaimed.

In the drawings, Figure l is a section substantially on line w Fig. 2,through a portion of the elevator-car platform and one of 'the landings,showing the mechanism for transferring the hatch-covers to the landings.Fig. 2 is a sectional elevation at right angles to Fig. l. Fig. 3 is asection showing one of the hatch-covers in engagement with the landing.Fig. A is a sectional perspective view of a portion of one of thecarrying-supports and the mechanism contained therein. Fig. 5 is ahorizontal section through said support. Fig. 6 is a diagram of theactuating mechanism carried by the car. Fig. 7 is a sectional elevationillustrating two landings and the mechanism fordepositing the coversthereat.

A is the elevator-car platform, and B is one of the landings. As thegeneral construction of the car or elevator-shaft forms no part of mypresent invention, I have deemed it unnecessary to further illustratethe same. Depending from the platform A are a series of supports orhangers C, on which the hatchcovers are carried. I preferably providethe deposited in the hatch-openings at the landings in the upwardmovement of the car. The construction of these hatch-covers is alsoimmaterial to my present invention eX- cepting so far as it relates tomeans for engaging the covers to their carrying-supports or to thelandings, the construction of said engaging means being as follows: a isa bolt or locking-bar slidingly secured in bearings, such as b, on eachof the hatch-covers. The outer end of this bolt is adapted to engagewith the keeper at the landing, which keeper is shown as consisting of acasting E, screwed or otherwise secured to the landing and provided witha recess o for the engagement of the bolt. The opposite end of the bolta is adapted to engage with a recess d, formed in the depending hangerO, the arrangement being such that when the bolt is in full engagementwith the keeper E it is wholly withdrawn from the recess d and, on theother hand, when it is in full engagement with the recess d it is whollywithdrawn from the recess c in the keeper.

F is au actuating member for the bolt a, which is permanently carried bythe car and adapted to engage or disengage from said bolt by a verticalmovement. As shown, this member is slidingly secured in bearings formedin the hanger C, which latter is hollow and contains the mechanism foroperating said member. The length of this member is such that in oneposition it is .wholly contained within the horizontal section of thehanger C and in such position is adapted to press the bolt a out ofengagement with -the recess d, thereby disengaging the hatch-cover fromthe hanger. The member F is also employed for drawing the bolt intoengagement with said recess d, and to this end said bolt ct is providedwith an extension c, which passes around the hanger and engages with IOOthe opposite end of the member F, as plainly shown in Fig. 4.

The hatch-covers D D D3 are arranged in vertical series on the hangersC, it being of course understood that there are as many covers ashatch-openings at the various landings to be filled. In the upwardmovement of the car these covers must be successively disengaged fromtheir hangers and deposited in the hatch-openings, while in the downwardmovement they are taken up in the reverse order. Thus the members F mustbe successively operated, and this is accomplished by the followingmechanism:

G is a bar arranged to slide vertically in bearings within the hanger C.H represents lateral projections on said bar, preferably in the form ofantifriction-rolls, and adapted t0 respectively engage with cams orinclosuresf on the members F. The rollers H are differentiall y arrangedin relation to the respective members F, so that in the downwardmovement of the bar G the lowest :roll H will first engage with the camfand actuate its corre- 'sponding member F, and in the further downwardmovement of said bar the rollers will successively engage with saidcams. The effect of,the movement of the roll in relation to its cam isto cause the member F to be moved laterally, and thereby to impart asimilar movement to the bolt a. As shown, the camsf are formed bytheopposite sides of an inclined groove formed on the inner face of themember F, and respectively above and below said member are guide-lugs g,formed with opposite inclines, the latter serving vto insure theentering of the roll into the inclined groove.

The bar G receives its movement from the movement of the car in relationto fixed pins or operating devices, such as I, on the elevatorshaft,suitable intervening mechanism being provided to coperate with said pinsand impart a vertical movement to the bar. The pins I may be arranged inany suitable position on the elevator-shaft where they are adapted toimpart a suitably-timed intermittent movement to bar G. I preferably,however, arrange these pins in vertical alinement and secure them to theside of the guide-post .I of the elevator.

The mechanism for cooperating with the pins I, I have shown ascomprising the starwheel K, journaled in a bearing-bracket L, secured tothe car-platform and connected by suitable gearing, such as sprockets MandN and chain O, with the shaft I), which shaft has a pinion Q thereon,meshing with the rack R, formed on the bar G. Any other suitablemechanism may be substituted for the one above described, and the bars Gof the various hangers may be operated either from onev commonmechanism, or each may be provided with an independent mechanismengaging with an' independent series of pins I. I preferably actuate allof the bars G from a common mechment with the lowest one of the pins I.

anism, and to this end the shaft P is extended into proximity to two ofthe hangers and is provided with two pinions Q in engagement,respectively, withthe racks of the two bars G, and a similar shaft P' isprovided on the other side of the platform, extending into proximitywith the other two posts and having pinions QV thereon similarlyengaging with the racks on the bars G. The shaft P" is connected bygearing comprising the sprockets M and N' and the chain O with the shaftP.

The device being constructed as above described,the operation is asfollows: The hatchcovers D D/ D2, &c., are all carried by the hangers Cwhen the car is in its lowest position. In the upward movement of thecar the star-wheel K will iirst come into engage- This in the continuedupward movement of the car will impart a partial rotation to said Wheeland through the connecting-gearing will rotate the shafts P and P andthe pinions Q and Q thereon. The latter will impart a correspondingmovement to the bars G, which will cause the lowest roll H to traveldownward past the cam f of the lowest sliding member F. In the initialposition this member G is arranged to hold the bolt a, in engagementwith the recess d and out of the path of the keepers E. As soon,however, as the bar G is moved downward and the pin H traverses theinclined groove forming the cam j' said member F will be movedlaterkally to press the bolt a out of engagement with the recess d andinto engagement with the recess c of the keeper E. The pin I is so vpositioned that the initial movement is imparted to the member F just asthe outer end of the bolt et comes into registration with the recess c.As, however, the car continues to travel during the movement of themember F, and thus carries the latter, together with the bolt a, upward,it is necessary to elongate the recesses c and d. Thus as the carcontinues to move the star-wheel K will be rotated and through themechanism described will movethe member F laterally, pressing the bolta' out of engagement with the recess d and into engagement with therecess c. Beforethe upper shoulder of the recess c is reached the boltwill be completely withdrawn from the recess d, which will permit thecover to fall until said bolt rests on the lower shoulder of the recess.The cover being thus freed from the car, the latterin its,co11tinue'dupward movement will withdraw the hanger C from the apertures in thecover, leaving the latter securely locked tothe landing. When anotherlanding is reached, the starwheel KV will engage with the succeeding pinI, and the operation will be repeated to deposit the hatch-cover in thehatch-opening, and soon until the highest landing is reached. In thedescent of the car the operation will be reversed, the engagement of thestar-wheel with the pin rotating the former in the op.po

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site direction, and thereby causing the bolt to be Withdrawn from therecess c and engaged with the recess d. As above stated, the recess d issufficiently elongated to permit the continued traveling of the carduring the operation of releasing the bolt from the keeper E.

It will be noticed that with the device above described a singleoperating mechanism is employed for depositing or taking up all of thecovers and that this operating mechanism is itself operated by a singleseries of pins arranged in vertical alinementwith each other. Thus theentire area of the hatch-opening may, if desired, be filled by thehatch-cover With the exception of a sufficient opening to permit thecovers to pass the pins l. rlhis construction has an obvious advantageover those in which the separate covers are operated by separatemechanisms, and especially so Where said mechanisms are secured to thelandings and are out of vertical alinement with each other. It will befurther seen that each cover carries its own locking means, and that theactuating means therefor is permanently carried by the car, and alsothat said actuating means automatically engages With said locking meansby a vertical movement, While in its operation the movement of thclocking mechanism is lateral. The result of this construction is thatthe hatch-coversare relieved from all vertical pressure during thesliding of the bolts, and thus said bolts easily engage or disengagefrom the keepers and lockingrecesses in the carrying-supports. lt Willalso be observed that as a single actuating mechanism is employed forthe entire vertical series of covers the number of parts of the entiremechanism is greatly reduced.

lVhat I claim as my invention is 1. In an elevator, the combination Withthe car, of a hatch-cover, means for alternatively locking the same tothe car or to the landing, and an actuating member for said lockingmeans permanently carried by the car,` said member being` movable in thesame direction as said locking means in its locking and unlockingmovement.

2. In an elevator, the combination With the car, of a hatch-cover, acarrying-support for said cover depending from said car, means carriedby said cover for alternatively locking the same to said dependingsupport or the landing, a laterally-movable member permanently carriedby said support, having a vertical coupling engagement with said lockingmeans, and mechanism for actuating said member and thereby operatingsaid locking means.

8. In an elevator, the combination with the car, of a hatch-cover, acarrying-support therefor depending from the car Within the area of saidcover and vertically engaging an aperture in the latter, means carriedby said cover for laterally engaging said carryingsupport or thelanding, alternatively, to lock the cover to either one or the other,and an actuating device for said locking means adapted to be WithdrawnWithin said carrying-support when the latter engages or is Withdrawnfrom the aperture in said cover.

Il. ln an elevator, the combination With the car, of a plurality ofhatch-covers carriedthereby, means for locking each of said coversalternatively to the car or to their respective landings, an actuatingmember for each of said locking means and movable in the same directionas the locking means in its locking and unlocking movements, and acommon actuating mechanism for said actuating members.

5. ln an elevator, the combination with the car, of a plurality ofcovers, a carrying-support therefor depending from the car, means forlocking said covers in different positions to said carrying-support oralternatively to their respective landings, and a common actuatingmechanism permanently carried by said car adapted to successivelyactuate the locking means of said covers by a substantially horizontalmovement.

6. In an elevator, the combination with the car, of a hatch-cover, acarrying-support therefor depending from the car, a plurality oflaterally-movable bolts for lookin g said. cover to its landing, oralternatively to said carrying-support mechanism carried by the car forsimultaneously operating all of said bolts and a single stationarycooperating member for actuating said mechanism in timed relaa tion tothe movement of the car.

7. In an elevator, the combination with the car,- of a hatch-cover, asupport therefor on the car, a laterally-slidable member carried by saidsupport and adapted to engage or disengage the cover therefrom, andmeans for actuating said member in timed relation to the movement of thecar.

8. In an elevator, the combination with the car, of a plurality ofhatch-covers, a carrying-support for said covers on the car, a pluralityof laterally-slidable members carried by said support and adapted torespectively engage or disengage said covers therefrom and a commonmechanism for successively actuating said slidable members.

9. In an elevator, the combination with the car, of a plurality ofhatch-covers, a hollow carrying-support therefor depending from the car,a plurality of members laterally slidable in said depending support andadapted. to respectively engage or disengage said covers therefrom, avertically-slidable bar Within said standard having a cam engagementwith said laterally-slidable members adapted to successively operate thesame in the vertical movement of the bar, and means for actuating saidvertical bar in timed. relation to the movement of the car.

lO. In an elevator, the combination with a car and a series ofhatch-covers carried there- IOO by, of mechanism carried by the ear forsuecessiveiy depositing said covers at their re-V spective landings, inthe upward movement of the ear, and for rengaging them with the ear inthe downward movement thereof, and a series of stationary members forCoperating with said mechanism, to suceessivelyaetuate the same, theengaging portions of said

